Tekken is compatible for this device

I am not able to take screenshot even i can't take my home screen screenshot and can't take screenshot of nothing else. it's says “ Can't take screenshot due to security policy” I take this screenshot by Attaching screenshot option here you can see

screen blink while typing and there is no circuit issue or hardware issue

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continuously crashing this game and i did everything you said. my phone is new and have 20 GB space free.. and i have only 2 games in mobile.. first one is clash of clan and second one is GTA :SA and both app is continuously crashing.. and for your i...